| 摘要 |
<p>Carbon transfer web is coated with tinsel contg. as inert pigment, printer's ink and the uncoated side is passed over a relief roller to produce on the coated side a filigree pattern corresponding to instruction data and the like, the patter being visible due to differential reflection. The pigment is in an amount 0.2-25%, pref. 5-8%.</p> |
